Panasonic VL-SV74BX - MIC Board

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14.2.2 MIC Board

L700

L701

C700

MIC1

PNLB2805**

-YY -b

VL-V524L: Mic Board

(Component View)

(Bottom View)

- 77 -

Main Page

Table of Contents3
Safety Precautions5
For Service Technicians5
Insulation Resistance Test (by Insulation Resistance Tester)5
Power Caution5
Warning6
Battery Caution6
About Lead Free Solder (Pbf: Pb Free)6
Suggested Pbf Solder6
Discarding of P.C. Board7
Note for Repairing7
Disposal of Old Equipment7
Specifications8
Main Monitor Station (VL-MV74)8
Door Phone (VL-V524L)8
Technical Descriptions9
Block Diagram9
IC Operation11
Monitor Station Section11
Door Station Section15
Location of Controls and Components17
Installation Instructions18
Operating Instructions19
Service Mode20
Things to Do after Replacing IC20
Main Monitor Station20
Troubleshooting Guide21
Operation Check of the Door Station21
Operation Check of the Main Monitor Station25
Defect of Communication between the Main Monitor Station and Extension Monitor26
Defect of the Extension Monitor Video Recording27
Defect of the Main Monitor Station Power Supply28
Defect of the Main Monitor Station Video Recording32
Defect of the Communication between the Main Monitor Station and the Door Station33
Defect of the Communication between the Extention Monitor Station and the Door Station34
Defect of the Key Board Unit35
Signal Route36
Disassembly and Assembly Instructions42
Main Monitor Station42
How to Remove the AC Cord [No.1]42
How to Remove the Cabinet Cover [No.2]42
How to Remove the Main Board, Speaker and LCD [No.3]43
How to Remove the Power Board, Key Board [No.4]44
Door Station45
How to Remove the Front Panal [No.1]45
How to Remove the Door Station [No.2]46
How to Remove the Main Board and Camera Unit [No.3]47
How to Remove the MIC Board and Speaker [No.4]48
Installation of the Lead Wires50
Item to be Checked after Completion of Assembly (Camera Lens Angle Adjustment)50
Measurements and Adjustments51
Main Monitor Station51
Main Board51
Factory Mode53
Door Station56
Miscellaneous57
How to Replace the Flat Package IC57
Preparation57
Flat Package IC Removal Procedure57
Flat Package IC Installation Procedure58
Bridge Modification Procedure58
Schematic Diagram59
Main Monitor Station60
Main Board (1) / External I/F60
Main Board (2) / BBIC61
Main Board (3) / DPJP3_KEY62
Main Board (4) / LCD63
Main Board (5) / External I/F_Electric Lock64
Main Board (6) / DCDC65
Main Board (7) / am Communication_Base Unit66
Main Board (8) / am Communication_Add Base Unit67
Main Board (9) / KEY68
Power Board69
Door Station70
Main Board70
MIC Board71
Printed Circuit Board72
Main Monitor Station72
Main Board (Component View)72
Main Board (Bottom View)73
Key Board74
Power Board75
Door Station Board76
Main Board76
MIC Board77
Exploded View and Replacement Parts List78
Exploded View78
Main Monitor Station78
Door Station79
Accessories and Packing Materials Location80
Replacement Parts List84
Main Monitor Station84
Door Station93
Accessories and Packing Materials95
Fixtures and Tools98

Panasonic VL-SV74BX - MIC Board

Table of Contents

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